Finding the Fourth Proportional to 85,739, 118,319.88 and 48,014.12

Step by Step Solution

1. Step 1: Write the proportion equation
   85,739 : 118,319.88 = 48,014.12 : x
2. Step 2: Convert to fraction form
   85,739/118,319.88 = 48,014.12/x
3. Step 3: Cross multiply
   85,739x = 118,319.88 × 48,014.12
4. Step 4: Simplify right side
   85,739x = 5,681,024,916.71
5. Step 5: Solve for x
   x = 5,681,024,916.71/85,739
6. Step 6: Final answer
   x = 66,259.52