Finding the Fourth Proportional to 60,720.07, 83,799.72 and 45,379.98

Step by Step Solution

1. Step 1: Write the proportion equation
   60,720.07 : 83,799.72 = 45,379.98 : x
2. Step 2: Convert to fraction form
   60,720.07/83,799.72 = 45,379.98/x
3. Step 3: Cross multiply
   60,720.07x = 83,799.72 × 45,379.98
4. Step 4: Simplify right side
   60,720.07x = 3,802,829,617.61
5. Step 5: Solve for x
   x = 3,802,829,617.61/60,720.07
6. Step 6: Final answer
   x = 62,628.87