Finding the Fourth Proportional to 88,798.78, 133,263.90 and 42,051.76

Step by Step Solution

1. Step 1: Write the proportion equation
   88,798.78 : 133,263.90 = 42,051.76 : x
2. Step 2: Convert to fraction form
   88,798.78/133,263.90 = 42,051.76/x
3. Step 3: Cross multiply
   88,798.78x = 133,263.90 × 42,051.76
4. Step 4: Simplify right side
   88,798.78x = 5,603,981,539.46
5. Step 5: Solve for x
   x = 5,603,981,539.46/88,798.78
6. Step 6: Final answer
   x = 63,108.77