Finding the Fourth Proportional to 139,540,141.55, 209,294,241.21 and 37,312,150.79

Step by Step Solution

1. Step 1: Write the proportion equation
   139,540,141.55 : 209,294,241.21 = 37,312,150.79 : x
2. Step 2: Convert to fraction form
   139,540,141.55/209,294,241.21 = 37,312,150.79/x
3. Step 3: Cross multiply
   139,540,141.55x = 209,294,241.21 × 37,312,150.79
4. Step 4: Simplify right side
   139,540,141.55x = 7,809,218,286,459,680
5. Step 5: Solve for x
   x = 7,809,218,286,459,680/139,540,141.55
6. Step 6: Final answer
   x = 55,963,955.60