Finding the Fourth Proportional to 77,385.58, 116,111.18 and 42,284.23

Step by Step Solution

1. Step 1: Write the proportion equation
   77,385.58 : 116,111.18 = 42,284.23 : x
2. Step 2: Convert to fraction form
   77,385.58/116,111.18 = 42,284.23/x
3. Step 3: Cross multiply
   77,385.58x = 116,111.18 × 42,284.23
4. Step 4: Simplify right side
   77,385.58x = 4,909,671,840.69
5. Step 5: Solve for x
   x = 4,909,671,840.69/77,385.58
6. Step 6: Final answer
   x = 63,444.27