Finding the Fourth Proportional to 139,851,496.43, 209,796,389.39 and 47,710,495.71

Step by Step Solution

1. Step 1: Write the proportion equation
   139,851,496.43 : 209,796,389.39 = 47,710,495.71 : x
2. Step 2: Convert to fraction form
   139,851,496.43/209,796,389.39 = 47,710,495.71/x
3. Step 3: Cross multiply
   139,851,496.43x = 209,796,389.39 × 47,710,495.71
4. Step 4: Simplify right side
   139,851,496.43x = 10,009,489,736,084,362
5. Step 5: Solve for x
   x = 10,009,489,736,084,362/139,851,496.43
6. Step 6: Final answer
   x = 71,572,274.82