Finding the Fourth Proportional to 77,950, 107,570.88 and 42,140.04

Step by Step Solution

1. Step 1: Write the proportion equation
   77,950 : 107,570.88 = 42,140.04 : x
2. Step 2: Convert to fraction form
   77,950/107,570.88 = 42,140.04/x
3. Step 3: Cross multiply
   77,950x = 107,570.88 × 42,140.04
4. Step 4: Simplify right side
   77,950x = 4,533,041,186.04
5. Step 5: Solve for x
   x = 4,533,041,186.04/77,950
6. Step 6: Final answer
   x = 58,153.19