Finding the Fourth Proportional to 77,852.32, 107,436.20 and 42,042.33

Step by Step Solution

1. Step 1: Write the proportion equation
   77,852.32 : 107,436.20 = 42,042.33 : x
2. Step 2: Convert to fraction form
   77,852.32/107,436.20 = 42,042.33/x
3. Step 3: Cross multiply
   77,852.32x = 107,436.20 × 42,042.33
4. Step 4: Simplify right side
   77,852.32x = 4,516,868,174.35
5. Step 5: Solve for x
   x = 4,516,868,174.35/77,852.32
6. Step 6: Final answer
   x = 58,018.41