Finding the Fourth Proportional to 139,432,574.25, 208,744,975.42 and 105,033,846.87

Step by Step Solution

1. Step 1: Write the proportion equation
   139,432,574.25 : 208,744,975.42 = 105,033,846.87 : x
2. Step 2: Convert to fraction form
   139,432,574.25/208,744,975.42 = 105,033,846.87/x
3. Step 3: Cross multiply
   139,432,574.25x = 208,744,975.42 × 105,033,846.87
4. Step 4: Simplify right side
   139,432,574.25x = 21,925,287,783,146,192
5. Step 5: Solve for x
   x = 21,925,287,783,146,192/139,432,574.25
6. Step 6: Final answer
   x = 157,246,525.08