Finding the Fourth Proportional to 143,803,436.00, 215,362,755.79 and 91,827,042.80

Step by Step Solution

1. Step 1: Write the proportion equation
   143,803,436.00 : 215,362,755.79 = 91,827,042.80 : x
2. Step 2: Convert to fraction form
   143,803,436.00/215,362,755.79 = 91,827,042.80/x
3. Step 3: Cross multiply
   143,803,436.00x = 215,362,755.79 × 91,827,042.80
4. Step 4: Simplify right side
   143,803,436.00x = 19,776,124,992,147,896
5. Step 5: Solve for x
   x = 19,776,124,992,147,896/143,803,436.00
6. Step 6: Final answer
   x = 137,521,922.58