Finding the Fourth Proportional to 92,900.98, 139,238.88 and 42,877

Step by Step Solution

1. Step 1: Write the proportion equation
   92,900.98 : 139,238.88 = 42,877 : x
2. Step 2: Convert to fraction form
   92,900.98/139,238.88 = 42,877/x
3. Step 3: Cross multiply
   92,900.98x = 139,238.88 × 42,877
4. Step 4: Simplify right side
   92,900.98x = 5,970,145,457.76
5. Step 5: Solve for x
   x = 5,970,145,457.76/92,900.98
6. Step 6: Final answer
   x = 64,263.54