Finding the Fourth Proportional to 85,833,617.61, 118,453,507.25 and 49,171,274.49

Step by Step Solution

1. Step 1: Write the proportion equation
   85,833,617.61 : 118,453,507.25 = 49,171,274.49 : x
2. Step 2: Convert to fraction form
   85,833,617.61/118,453,507.25 = 49,171,274.49/x
3. Step 3: Cross multiply
   85,833,617.61x = 118,453,507.25 × 49,171,274.49
4. Step 4: Simplify right side
   85,833,617.61x = 5,824,509,919,047,099
5. Step 5: Solve for x
   x = 5,824,509,919,047,099/85,833,617.61
6. Step 6: Final answer
   x = 67,858,143.25