Finding the Fourth Proportional to 94,521,044.10, 141,994,142.55 and 90,907,245.30

Step by Step Solution

1. Step 1: Write the proportion equation
   94,521,044.10 : 141,994,142.55 = 90,907,245.30 : x
2. Step 2: Convert to fraction form
   94,521,044.10/141,994,142.55 = 90,907,245.30/x
3. Step 3: Cross multiply
   94,521,044.10x = 141,994,142.55 × 90,907,245.30
4. Step 4: Simplify right side
   94,521,044.10x = 12,908,296,347,956,018
5. Step 5: Solve for x
   x = 12,908,296,347,956,018/94,521,044.10
6. Step 6: Final answer
   x = 136,565,316.97