Finding the Fourth Proportional to 60,461.98, 83,431.80 and 56,003.74

Step by Step Solution

1. Step 1: Write the proportion equation
   60,461.98 : 83,431.80 = 56,003.74 : x
2. Step 2: Convert to fraction form
   60,461.98/83,431.80 = 56,003.74/x
3. Step 3: Cross multiply
   60,461.98x = 83,431.80 × 56,003.74
4. Step 4: Simplify right side
   60,461.98x = 4,672,492,834.93
5. Step 5: Solve for x
   x = 4,672,492,834.93/60,461.98
6. Step 6: Final answer
   x = 77,279.85