Finding the Fourth Proportional to 124,403,111.98, 171,710,444.70 and 72,208,962.76

Step by Step Solution

1. Step 1: Write the proportion equation
   124,403,111.98 : 171,710,444.70 = 72,208,962.76 : x
2. Step 2: Convert to fraction form
   124,403,111.98/171,710,444.70 = 72,208,962.76/x
3. Step 3: Cross multiply
   124,403,111.98x = 171,710,444.70 × 72,208,962.76
4. Step 4: Simplify right side
   124,403,111.98x = 12,399,033,106,845,340
5. Step 5: Solve for x
   x = 12,399,033,106,845,340/124,403,111.98
6. Step 6: Final answer
   x = 99,668,190.85