Finding the Fourth Proportional to 139,953,904.67, 193,232,016.92 and 90,513,941.15

Step by Step Solution

1. Step 1: Write the proportion equation
   139,953,904.67 : 193,232,016.92 = 90,513,941.15 : x
2. Step 2: Convert to fraction form
   139,953,904.67/193,232,016.92 = 90,513,941.15/x
3. Step 3: Cross multiply
   139,953,904.67x = 193,232,016.92 × 90,513,941.15
4. Step 4: Simplify right side
   139,953,904.67x = 17,490,191,407,340,114
5. Step 5: Solve for x
   x = 17,490,191,407,340,114/139,953,904.67
6. Step 6: Final answer
   x = 124,971,085.65