Finding the Fourth Proportional to 64,047,061.45, 88,318,882.47 and 54,785,290.87

Step by Step Solution

1. Step 1: Write the proportion equation
   64,047,061.45 : 88,318,882.47 = 54,785,290.87 : x
2. Step 2: Convert to fraction form
   64,047,061.45/88,318,882.47 = 54,785,290.87/x
3. Step 3: Cross multiply
   64,047,061.45x = 88,318,882.47 × 54,785,290.87
4. Step 4: Simplify right side
   64,047,061.45x = 4,838,575,665,432,294
5. Step 5: Solve for x
   x = 4,838,575,665,432,294/64,047,061.45
6. Step 6: Final answer
   x = 75,547,192.27