Finding the Fourth Proportional to 114,939,864.06, 172,307,290.57 and 42,139,680.55

Step by Step Solution

1. Step 1: Write the proportion equation
   114,939,864.06 : 172,307,290.57 = 42,139,680.55 : x
2. Step 2: Convert to fraction form
   114,939,864.06/172,307,290.57 = 42,139,680.55/x
3. Step 3: Cross multiply
   114,939,864.06x = 172,307,290.57 × 42,139,680.55
4. Step 4: Simplify right side
   114,939,864.06x = 7,260,974,181,055,827
5. Step 5: Solve for x
   x = 7,260,974,181,055,827/114,939,864.06
6. Step 6: Final answer
   x = 63,171,939.87