Finding the Fourth Proportional to 321,150,974.58, 481,746,407.31 and 91,138,060.98

Step by Step Solution

1. Step 1: Write the proportion equation
   321,150,974.58 : 481,746,407.31 = 91,138,060.98 : x
2. Step 2: Convert to fraction form
   321,150,974.58/481,746,407.31 = 91,138,060.98/x
3. Step 3: Cross multiply
   321,150,974.58x = 481,746,407.31 × 91,138,060.98
4. Step 4: Simplify right side
   321,150,974.58x = 43,905,433,446,314,696
5. Step 5: Solve for x
   x = 43,905,433,446,314,696/321,150,974.58
6. Step 6: Final answer
   x = 136,712,751.70