Finding the Fourth Proportional to 297,064,390.31, 445,414,897.17 and 141,665,727.50

Step by Step Solution

1. Step 1: Write the proportion equation
   297,064,390.31 : 445,414,897.17 = 141,665,727.50 : x
2. Step 2: Convert to fraction form
   297,064,390.31/445,414,897.17 = 141,665,727.50/x
3. Step 3: Cross multiply
   297,064,390.31x = 445,414,897.17 × 141,665,727.50
4. Step 4: Simplify right side
   297,064,390.31x = 63,100,025,446,768,464
5. Step 5: Solve for x
   x = 63,100,025,446,768,464/297,064,390.31
6. Step 6: Final answer
   x = 212,411,946.72