Finding the Fourth Proportional to 85,726,018.47, 118,287,881.91 and 50,473,530.98

Step by Step Solution

1. Step 1: Write the proportion equation
   85,726,018.47 : 118,287,881.91 = 50,473,530.98 : x
2. Step 2: Convert to fraction form
   85,726,018.47/118,287,881.91 = 50,473,530.98/x
3. Step 3: Cross multiply
   85,726,018.47x = 118,287,881.91 × 50,473,530.98
4. Step 4: Simplify right side
   85,726,018.47x = 5,970,407,072,142,966
5. Step 5: Solve for x
   x = 5,970,407,072,142,966/85,726,018.47
6. Step 6: Final answer
   x = 69,645,215.99