Finding the Fourth Proportional to 53,434,665.90, 74,959,697.70 and 53,434,665.90

Step by Step Solution

1. Step 1: Write the proportion equation
   53,434,665.90 : 74,959,697.70 = 53,434,665.90 : x
2. Step 2: Convert to fraction form
   53,434,665.90/74,959,697.70 = 53,434,665.90/x
3. Step 3: Cross multiply
   53,434,665.90x = 74,959,697.70 × 53,434,665.90
4. Step 4: Simplify right side
   53,434,665.90x = 4,005,446,402,564,498.50
5. Step 5: Solve for x
   x = 4,005,446,402,564,498.50/53,434,665.90
6. Step 6: Final answer
   x = 74,959,697.70