Finding the Fourth Proportional to 78,662,659.34, 108,623,013.86 and 49,344,387.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,662,659.34 : 108,623,013.86 = 49,344,387.98 : x
2. Step 2: Convert to fraction form
   78,662,659.34/108,623,013.86 = 49,344,387.98/x
3. Step 3: Cross multiply
   78,662,659.34x = 108,623,013.86 × 49,344,387.98
4. Step 4: Simplify right side
   78,662,659.34x = 5,359,936,139,045,003
5. Step 5: Solve for x
   x = 5,359,936,139,045,003/78,662,659.34
6. Step 6: Final answer
   x = 68,138,252.43