Finding the Fourth Proportional to 78,948,656.10, 118,449,869.76 and 42,560,562.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,948,656.10 : 118,449,869.76 = 42,560,562.78 : x
2. Step 2: Convert to fraction form
   78,948,656.10/118,449,869.76 = 42,560,562.78/x
3. Step 3: Cross multiply
   78,948,656.10x = 118,449,869.76 × 42,560,562.78
4. Step 4: Simplify right side
   78,948,656.10x = 5,041,293,118,203,304
5. Step 5: Solve for x
   x = 5,041,293,118,203,304/78,948,656.10
6. Step 6: Final answer
   x = 63,855,337.98