Finding the Fourth Proportional to 99,962.56, 149,869.77 and 60,510.34

Step by Step Solution

1. Step 1: Write the proportion equation
   99,962.56 : 149,869.77 = 60,510.34 : x
2. Step 2: Convert to fraction form
   99,962.56/149,869.77 = 60,510.34/x
3. Step 3: Cross multiply
   99,962.56x = 149,869.77 × 60,510.34
4. Step 4: Simplify right side
   99,962.56x = 9,068,670,738.42
5. Step 5: Solve for x
   x = 9,068,670,738.42/99,962.56
6. Step 6: Final answer
   x = 90,720.67