Finding the Fourth Proportional to 219,061.63, 328,593.12 and 61,291.45

Step by Step Solution

1. Step 1: Write the proportion equation
   219,061.63 : 328,593.12 = 61,291.45 : x
2. Step 2: Convert to fraction form
   219,061.63/328,593.12 = 61,291.45/x
3. Step 3: Cross multiply
   219,061.63x = 328,593.12 × 61,291.45
4. Step 4: Simplify right side
   219,061.63x = 20,139,948,784.82
5. Step 5: Solve for x
   x = 20,139,948,784.82/219,061.63
6. Step 6: Final answer
   x = 91,937.36