Finding the Fourth Proportional to 71,501,864.94, 107,318,554.43 and 55,431,089.10

Step by Step Solution

1. Step 1: Write the proportion equation
   71,501,864.94 : 107,318,554.43 = 55,431,089.10 : x
2. Step 2: Convert to fraction form
   71,501,864.94/107,318,554.43 = 55,431,089.10/x
3. Step 3: Cross multiply
   71,501,864.94x = 107,318,554.43 × 55,431,089.10
4. Step 4: Simplify right side
   71,501,864.94x = 5,948,784,352,415,374
5. Step 5: Solve for x
   x = 5,948,784,352,415,374/71,501,864.94
6. Step 6: Final answer
   x = 83,197,611.10