Finding the Fourth Proportional to 156,994, 216,671.34 and 89,926

Step by Step Solution

1. Step 1: Write the proportion equation
   156,994 : 216,671.34 = 89,926 : x
2. Step 2: Convert to fraction form
   156,994/216,671.34 = 89,926/x
3. Step 3: Cross multiply
   156,994x = 216,671.34 × 89,926
4. Step 4: Simplify right side
   156,994x = 19,484,386,920.84
5. Step 5: Solve for x
   x = 19,484,386,920.84/156,994
6. Step 6: Final answer
   x = 124,109.12